IN 1945, while in a state of exhaustion, the mathematician John von Neumann had a kind of stammering premonition. He was in Los Alamos, working on the atom bomb, and he told his wife Klari that the “energy source” he was helping to develop would make scientists “the most hated and also the most wanted citizens of any country”. Then he informed her that his other ongoing project, the computer, would one day be even more important—and potentially even more dangerous…

This article first appeared in The Economist on 6 October 2021. To continue reading, click here (paywall).